PREAMBLE (NOT PART OF THE STANDARD)

In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them.

END OF PREAMBLE (NOT PART OF THE STANDARD)

(Reaffirmed 2007)

IS 13386:1992

REAFFIRMED 2007

Indian Standard
FIRE EXTINGUISHER—50-LITRE CAPACITY—MECHANICAL FOAM TYPE—SPECIFICATION

UDC 6′14.845.5

© BIS 1992
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002

May 1992

Price Group 3

Fire Fighting Sectional Committee, CED 22

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Fire Fighting Sectional Committee had been approved by the Civil Engineering Division Council.

50 litre capacity fire extinguisher, mechanical foam type, is one of the larger versions of the fire extinguishers. This type of extinguisher in which foam is expanded by means of pressure produced from compressed or liquefied gas from pressure container fitted onto the extinguisher, is suitable for fighting fires in non-polar flammable liquids.

‘A scheme for labelling environment friendly products known as ECO Mark has been introduced at the instance of the Ministry of Environment and Forests (MEF), Government of India. The ECO Mark would be administered by the Bureau of Indian Standards (BIS) under the BIS Act, 1986 as per the Resolution No. 71 dated 21 February 1991 and No. 425 dated 28 October 1992 published in the Gazette of the Government of India. For a product to be eligible for marking with ECO logo, it shall also carry the ISI Mark of BIS besides meeting additional optional environment friendly requirements. For this purpose, the Standard Mark of BIS would be a single mark being a combination of the ISI Mark and the ECO logo. Requirements to be satisfied for a product to qualify for the BIS Standard Mark for ECO friendliness being included in the relevant published standards through an amendment. These requirements are optional; manufacturing units are free to opt for the ISI Mark alone also.

The amendment is based on the Gazette Notification No. 160 dated 1 April 1999 for Fire Extinguishers as environment friendly products published in the Gazette of the Government of India.’

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2: 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

Indian Standard
FIRE EXTINGUISHER—50-LITRE CAPACITY—
MECHANICAL FOAM TYPE—SPECIFICATION

1 SCOPE

This standard lays down the requirements regarding material, shape, construction, charge, anti-corrosion treatment and tests for 50 litre capacity mechanical foam fire extinguisher, mounted vertically on trolley wheels.

2 REFERENCES

The Indian Standards listed in Annex A are necessary adjuncts to this standard.

3 CAPACITY

The total liquid capacity of the container when filled to the specified level, shall be 50 ± 0.5.

4 PRINCIPLE

The mechanical foam extinguisher is operated in upright position puncturing the seal disc of gas cartidge attached, thus allowing the gas to enter on top of the liquid inside the container and pushing the liquid out through the hose and roam making branchpipe which aerates the liquid into foam.

5 MATERIAL

The materials for construction are given in Table 1.

6 SHAPE

The shape of the body of the mechanical foam extinguisher shall be cylindrical with outside diameter of 300 ± 25 mm and thickness of mild steel sheet shall be not less than 3.15 mm nominal.

7 CONSTRUCTION (FOR ILLUSTRATION, see FIG. 1)

7.1 General

The cylinder shall be of welded construction having cold or hot drawn cylindrical portion with hemi-spherical elliproidal or torispherical ends welded to it or two halves (upper half shorter) cold or hot drawn having dome and bottom dish of hemi-spherical or ellipsoidal or torispherical and circumferentially welded together. However vertical welding is also permitted, as higher capacity extinguishers may have 3 piece welding. A cylindrical skirt having minimum 25 mm height shall be welded to the bottom dish.

7.1.1

Where carrying handle and/or supporting fittings are fitted to the body, these shall be either welded or brazed. The carrying handle shall be made of mild steel or stainless steel rod not less than 20 mm in diameter or fabricated out of mild steel or stainless steel sheets of same thickness as the body and the clamp for holding the foam making nozzle shall be of mild steel sheet/plastic having thickness not less than that of the body.

7.2 Body

The material used in the construction of extinguisher bodies shall be weldable. The filler materials shall be compatible to the body steel to given good welds. A cylindrical ring shall be fitted/welded to the bottom dish. Minimum wall thickness of the body shall be calculated using the formula:

1. For carbon steel bodies

   

2. For austenitic stainless steel bodies,

   

where

7.2.1

The welded construction be one of the types given below and shall conform to Indian Standard mentioned against each:

1. Spot welding (for attachment of fittings only) shall conform to IS 819:1957 and
2. Metal arc welding shall conform to IS 9595:1980.

7.3 Carrying Handle

The carrying handle shall be made of mild steel rod or tube of not less than 16 mm diameter If tube, the thickness of the sheet used shall be not less than 1.25 mm.

7.4 Neck Ring

The neck ring shall provide a clear opening o not less than 75 mm diameter. It shall have parallel screw threads conforming to class A of IS 2643 (Part 1):1975 for an effective length of not less than 28 mm. The neck ring shall be firmly fixed to the body by welding.

7.5 Cap

The cap shall be threaded for not less than 25 mm effective length with parallel thread conforming to class A of IS 2643 (Part 1) 1975. At least four holes of not less than 2.5 mm diameter each shall be drilled through threads of the cap to form vents. The centre of the vent holes shall be 6.5 mm maximumfrom the face of the cap joint washer.

7.6 Snifter Valve

A snifter valve (breathing device) shall be fitted to extinguishers for upright type and the design shall be such that when variation in atmospheric temperature is within ± 10°C there shall be no spouting of liquid through nozzle.

7.8 Liquid Level Indicator

The 50 l level of the solution inside the body shall be indicated on the exterior of the body. It shall also be permanently indicated in the interior, or means shall be provided to demonstrate that the solution level is correct.

7.9 Hose

The discharge hose shall have a bore of not less than 12.5 mm and a length of not less than 3 m.

7.10 Foam Making Branch and Other Discharge Fittings

The design of the foam making branch and other discharge fittings shall be such that when the extinguisher is set in operation, it shall be capable of discharging foam as in 11.1.

7.11 Syphon Tube

The syphon tube shall be fitted inside the body.

7.12 Drain Plug

At the bottom of the body a drain plug of size 25 mm minimum with rubber washer shall be fitted.

7.13 Wheeled Carriage

The fire extinguisher shall be provided with wheeled carriage with rubber-tyred wheels of size 250 mm × 50 mm × 25 mm and axle of mild steel rod of 25 mm minimum diameter. Tolerance for wheeled carriage shall be 10 mm.

Fig. 1 50-Litre Capacity Mechanical Foam Type Extinguisher

The fitting shall ensure the lowest part of the body remains not less than 10 cm above the ground when it is in the vertical position.

7.14 Gas Cartridge

The capacity of gas cartridge shall not exceed 300 g

8 CHARGE

The charge shall consist of foam concentrate conforming to IS 4989 (Part 2):1984 and quantity not less than 3 l (for 6 percent concentrate) or 1.5 l (for 3 percent concentrate) and balance quantity of water to make the foam water solution to 50 l.

9 ANTI-CORROSIVE TREATMENT

9.1

All internal and external surfaces of the body shall be completely epoxy powder coated to minimum 0.050 mm thickness. The thickness of the coating shall be measured as given in IS 3203. The internal surface of the body shall be plastic/rubber coated and lining shall be of a minimum thickness of 0.5 mm as an alternative to powder coating.

9.1.1

Test for Adhesion of Plastic Lining (Type Test)—Subject the unfilled extinguisher to a pressure 15 kgf/cm² and store for at 27 ± 5°C.

Release the pressure and examine the extinguisher internally for cracking, separation from the wall of the body or lifting of the lining, and bubbles between the lining and the body.

body and both surfaces of siphon tube shall also be subjected to this anti-corrosive treatment. There shall be no visible uncoated area both internally or externally.

9.2

Phosphating in accordance with the provisions of IS 3618: 1966 may be applied on the external surface of the body as an alternative to lead-tin alloy.

10 PAINTING

10.1

Each extinguisher body except stainless steel body shall be painted either with epoxy powder coating or synthetic enamel paint. The shade shall be ‘Fire Red’ or ‘Post Office Red’ conforming to Shades No. 536 or 538 of IS 5. Stainless steel body shall be buffed.

NOTES

1. Whenever epoxy powder coating is applied on the external surface of mild steel body for anti-corrosive treatment, synthetic enamel paint coating is not required.
2. The body of extinguisher shall be of good finish, clear of all burrs and sharp edges”

10.2

A picture showing a man operating the extinguisher in the correct manner shall be shown on the body of the extinguisher.

10.3

Each extinguisher shall be marked with letters A and B, indicating their suitability for respective classes of fires as laid down in IS 2190. The letters A and B shall be of 2.5 ± 0.5 cm size printed in black colour, centrally contained in a square of 4 ± 0.5 cm size. The square shall be coloured cream (lemon yellow) conforming to shade No. 355 of IS 5.’

11 TEST REQUIREMENT

11.1

The extinguisher shall be discharging not less than 90 percent by mass of the actual rated capacity of the extinguisher, when the extinguisher is set into operation under normal temperature conditions of 27 ± 5°C, the foam solution shall be expelled in the form of a foam jet which will maintain a throw of not less than 10 m for the minimum period of 40 seconds. The maximum period of discharge of minimum 90 percent of the liquid shall be 180 seconds. The test shall be carried out so that the stream is discharged in horizontal direction in still air conditions from a height of 1.25 m from the ground.

11.2

The foam produced shall have minimum expansion 6 and 25 percent, drainage time 70 to 120 seconds and formation of film as per IS 4989 (Part 2):1984.

11.3

The extinguisher body and the cap (without the safety release valve) shall be tested separately to an internal hydraulic pressure of 3.0 MN/m² (30 kgf/cm²) for a period of 2 min. During this test, it shall not show any sign of leakage.

11.4

In case of hydraulic burst failure test for body, the mechanical failure shall not occur at a pressure of less than 4.5 MN/m² (45 kgf/cm³).

‘12 ADDITIONAL REQUIREMENTS FOR ECO MARK

12.1 General Requirements

12.1.1

Any fire extinguisher having BIS Standard Mark qualifies for consideration of ECO Mark.

12.1.2

The products manufacturer must produce the consent clearance as per provision of the Water (Prevention and Control of Pollution) Act, 1974, Water (Prevention and Control of Pollution) Cess Act, 1977 and Air (Prevention and Control of Pollution) Act, 1981 respectively, along with authorization if required under Environment (Protection) Act, 1986, and the Rules made thereunder to the Bureau of Indian Standards while applying for ECO Mark.

12.1.3

The products may display in brief the criteria based on which the product has been awarded ECO Mark.

12.1.4

The product may carry along with instructions for proper use so as to maximize product performance with statutory warning, if any, minimize waste and method of safe disposal.

12.1.5

The material used for product packaging (excluding refills) shall be recyclable, reusable or biodegradable.

12.1.6

The product must display a list of critical ingredients in descending order of quantity present in percent by weight. The list of such critical ingredients shall be identified by the Bureau of Indian Standards.

12.2 Specific Requirements

12.2.1

The fire extinguisher shall not contain any Ozone Depleting Substance (ODS) relevant to fire extinguishers industry as identified under the Montreal Protocol (Annex C).

12.2.2

Gas based extinguishing media once discharged in the atmosphere should not have atmospheric life time of more than a year (Annex D).

12.2.3

Chemical used should not have global warming potential (Annex E).

12.2.4

The metallic body and other metal parts of the fire extinguishers shall be free of lead or lead alloys.

12.2.5

The coating used for the metallic part shall not be formulated with mercury and mercury compounds or be tinted with pigments of lead, cadmium, chromium VI and their oxides. Excluded are natural impurities entailed by the production process up to the amount 0.1 percent by weight which are contained in the raw material.

NOTE—CO₂ extinguishers may be permitted till suitable substitutes are available.

13 MARKING

13.1

Each extinguisher shall be clearly and permanently marked with the following information:

1. Indication of the source of manufacture;
2. Method of operation in prominent letters;
3. The word ‘MECHANICAL FOAM FIRE EXTINGUISHERS’;
4. The capacity of extinguisher in litres;
5. The words ‘After discharge the extinguisher must be washed out carefully with fresh water using at least two changes in prominent letter;
6. A declaration to the effect that the body of the extinguisher has been tested to pressure of 3.0 MN/m² (30 kgf/cm³); and
7. Year of manufacture.
8. Class of fire, that is, A & B.

13.1.1

The extinguisher may also be marked with Standard Mark. Details for use of Standard Mark may be obtained from the Bureau of Indian Standards.

14 SAMPLING AND CRITERIA FOR CONFORMITY

The details of sampling and criteria for conformity are given in Annex B.

ANNEX A
LIST OF REFERRED INDIAN STANDARDS

(clause 2)

ANNEX B
SAMPLING AND CRITERIA FOR CONFORMITY

(clause 13)

B-0 GENERAL

B-0.1

The risk involved in failure of a fire extinguisher to work when needed is extremely large. Fire extinguishers, therefore, ought to have a high degree of reliability of performance during the entire period of its service. It can be achieved only through adequate design and control at all stages of manufacture and assembly.

B-1 SAMPLING

B-1.1 Lot

All fire extinguishers of the same type, shape, design and capacity, produced by the same manufacturer from similar materials under almost identical conditions of manufacture shall be grouped together to constitute a lot.

B-1.2

Each lot shall be considerd individually for the purpose of evaluation of quality in accordance with this specification.

B-1.2.1

The number of samples for testing to be taken at random from a lot and the criteria for conformity shall be as given in B-1.2.2 and B-1.2.3.

B-1.2.2

From each lot a number of samples as indicated in col 2 of Table 2 shall be selected at random.

B-1.2.3

They shall be examined visually, as far as possible, in respect of requirements specified in 4 to 7, 10 and 12 and then in respect of hydraulic pressure test (see 11.3) and corrosion test (see 9).

3-1.2.3.1

All the samples tested shall pass these tests for the lot to be declared to conform to these requirements.

B-1.2.4

In respect of performance test (see 11.1), one sample shall be tested for this property and the sample shall pass this test for the lot to be declared to conform to this requirements.

B-1.2.5

In respect of bursting pressure (see 11.4) one type test shall be done and these should conform to the requirements laid down in the specification.

B-1.2.6

In the absence of a certificate from a manufacturer about conformity of specifications for the various components (see 5) and the charge (see 8) from a sample fire extinguisher, such items shall be taken separately and examined individually in respect of the relevant requirements laid down in the specification. The lot shall be considered satisfactory if all the items satisfy the relevant requirements of this specification.

Bureau of Indian Standard

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writting of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designation. Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Revision of Indian Standards

Indian Standards are reviewed periodically and revised, when necessary and amendments, if any, are issued from time to time. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition. Comments on this Indian Standard may be sent to BIS giving the following reference:

Doc: No CED 22 (4613)

BUREAU OF INDIAN STANDARDS

(Reaffirmed 2008)

IS 13435 (Part 3):1992

REAFFIRMED 2003

Indian Standard
ACRYLIC BASED POLYMER WATERPROOFING
MATERIALS—METHODS OF TEST
PART 3 DETERMINATION OF CAPILLARY WATER TAKE-UP

UDC 691.175.774.32: 699.82: 543.54

© BIS 1992
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

July 1992

Price Group 1

Waterproofing and Damp-Proofing Sectional Committee, CED 41

FOREWORD

This Indian Standard (Part 3) was adopted by the Bureau of Indian Standards, after the draft finalized by Waterproofing and Damp-Proofing Sectional Committee had been approved by the Civil Engineering Division Council.

Acrylic based polymers are now extensively used in the country for waterproofing and damp-proofing purposes, necessitating the need of formulating a specification on the product. For evaluating the quality and performance characteristics of the product, standardized test methods are necessary to guide manufacture and users of the product.

Methods of tests for acrylic based polymer waterproofingmaterial have been covered in the following parts:

While formulating the above standards the Committee has taken into consideration the facilities available in the country and the practice prevailing in other countries.

In reporting the results of a test or analysis made in accordance with this standard, if the final value, observed or calculated, is to be rounded off, it shall be done in accordance with IS 2: 1960 ‘Rules for rounding off numerical values (revised)’.

Indian Standard
ACRYLIC BASED POLYMER WATERPROOFING MATERIALS—
METHODS OF TEST
PART 3 DETERMINATION OF CAPILLARY WATER TAKE-UP

1 SCOPE

1.1

This standard describes method of determination of capillary water take-up, that is the amount of water that penetrates an acrylic based polymer waterproofing material as a function of time and area.

2 REFERENCES

The Indian Standard IS 2185 (Part 3):1984 ‘Specification for concrete masonry units: Part 3 Autoclaved cellular aerated concrete blocks (first revision)’ is necessary adjunct to this standard.

3 APPARATUS

Following apparatus shall be used for performing the test:

1. Aerated concrete slabs of density 500 kg/m3 having size 240 mm × 240 mm × 45 mm, manufactured as per IS 2185 (Part 3):1984; and
2. Plastic pan capable of accommodating one or more horizontal specimen.

4 PREPARATION OF SPECIMEN AND PROCEDURE

4.1

For preparing specimen a coating of the dispersion to be tested shall be applied on the aerated concrete slab and shall be let dry. After the specimen coating has dried, the sides of the concrete slab shall be sealed with polyurethane finish.

4.2

The coated slabs shall be kept for 28 days at 27 ± 2°C and 65 ± 5 percent relative humidity and weighed. Weighed slabs shall then be placed with the coating downwards in water of 10 mm depth in the plastic pan.

4.3

After 24 h, the slabs shall be removed from the water and reweighed.

NOTE—At least three samples shall be used for such observation.

5 RESULTS

Capillary water take-up

where

6 REPORTING OF RESULTS

The test report shall give the following information:

1. Date of preparation of sample,
2. Date of putting in water,
3. Date of testing, and
4. Average capillary water take-up.

AMENDMENT NO. 1 DECEMBER 2000
TO
IS 13435 (PART 3):1992 ACRYLIC BASED
POLYMER WATERPROOFING MATERIALS—METHODS OF TEST

PART 3 DETERMINATION OF CAPILLARY WATER TAKE-UP

[Page 1, clause 3(a))—Substitute the following for the existing:

‘a) Specimen of size 240 mm × 240 mm × 45 mm to be cut from aerated concrete block of density 451 to 550 kg/m³, grade 1, having size 600 mm × 250 mm × 200 mm conforming to IS 2185 (Part 3).’

(CED 41)

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Revision of Indian Standards

Indian Standards are reviewed periodically and revised, when necessary and amendments, if any, are issued from time to time. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition. Comments on this Indian Standard may be sent to BIS giving the following reference:

Doc: No CED 41 (5069)

BUREAU OF INDIAN STANDARDS

ANNEX C
LIST OF OZONE DEPLETING SUBSTANCES (ODS) CONTROLLED BY MONTREAL PROTOCOL

(Clause 12.2.1)

NOTE—ODP values we relative to CFC-II which has been assigned arbitrary value of 1.0.

ANNEX D
LIST OF ATMOSPHERIC LIFE TIME OF GAS-BASED AGENTS

(Clause 12.2.2)

ANNEX E
LIST OF SUBSTANCES HAVING GLOBAL WARMING POTENTIAL (GWP)

(Clause 12.2.3)